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Add simpler support for colors, not used yet

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This commit is contained in:
Miguel de Icaza
2017-12-17 22:34:07 -05:00
parent 6883bc4692
commit dd7e553c9c
3 changed files with 78 additions and 24 deletions
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88
Driver.cs
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@@ -3,31 +3,49 @@ using System.Collections.Generic;
using Unix.Terminal;
namespace Terminal {
public struct Color {
public enum Color
{
Black,
Blue,
Green,
Cyan,
Red,
Magenta,
Brown,
Gray,
DarkGray,
BrightBlue,
BrightGreen,
BrighCyan,
BrightRed,
BrightMagenta,
BrightYellow,
White
}
public struct Attribute {
internal int value;
public Color (int v)
public Attribute (int v)
{
value = v;
}
public static implicit operator int (Color c) => c.value;
public static implicit operator Color (int v) => new Color (v);
public static implicit operator int (Attribute c) => c.value;
public static implicit operator Attribute (int v) => new Attribute (v);
}
public class ColorScheme {
public Color Normal;
public Color Focus;
public Color HotNormal;
public Color HotFocus;
public Color Marked => HotNormal;
public Color MarkedSelected => HotFocus;
public Attribute Normal;
public Attribute Focus;
public Attribute HotNormal;
public Attribute HotFocus;
public Attribute Marked => HotNormal;
public Attribute MarkedSelected => HotFocus;
}
public static class Colors {
public static ColorScheme Base, Dialog, Menu, Error;
public
}
public abstract class ConsoleDriver {
@@ -41,7 +59,15 @@ namespace Terminal {
public abstract void Refresh ();
public abstract void End ();
public abstract void RedrawTop ();
public abstract void SetColor (Color c);
public abstract void SetAttribute (Attribute c);
// Set Colors from limit sets of colors
public abstract void SetColors (ConsoleColor foreground, ConsoleColor background);
// Advanced uses - set colors to any pre-set pairs, you would need to init_color
// that independently with the R, G, B values.
public abstract void SetColors (short foreColorId, short backgroundColorId);
public abstract void DrawFrame (Rect region, bool fill);
Rect clip;
@@ -95,16 +121,44 @@ namespace Terminal {
public override void Refresh() => Curses.refresh ();
public override void End() => Curses.endwin ();
public override void RedrawTop() => window.redrawwin ();
public override void SetColor (Color c) => Curses.attrset (c.value);
public override void SetAttribute (Attribute c) => Curses.attrset (c.value);
public Curses.Window window;
static short last_color_pair;
static Color MakeColor (short f, short b)
static short last_color_pair = 16;
static Attribute MakeColor (short f, short b)
{
Curses.InitColorPair (++last_color_pair, f, b);
return new Color () { value = Curses.ColorPair (last_color_pair) };
return new Attribute () { value = Curses.ColorPair (last_color_pair) };
}
int [,] colorPairs = new int [16, 16];
public override void SetColors (ConsoleColor foreground, ConsoleColor background)
{
int f = (short) foreground;
int b = (short)background;
var v = colorPairs [f, b];
if ((v & 0x10000) == 0) {
b = b & 0x7;
bool bold = (f & 0x8) != 0;
f = f & 0x7;
v = MakeColor ((short)f, (short)b) | (bold ? Curses.A_BOLD : 0);
colorPairs [(int)foreground, (int)background] = v | 0x1000;
}
SetAttribute (v & 0xffff);
}
Dictionary<int, int> rawPairs = new Dictionary<int, int> ();
public override void SetColors (short foreColorId, short backgroundColorId)
{
int key = (((ushort)foreColorId << 16)) | (ushort) backgroundColorId;
if (!rawPairs.TryGetValue (key, out var v)) {
v = MakeColor (foreColorId, backgroundColorId);
rawPairs [key] = v;
}
SetAttribute (v);
}
public override void PrepareToRun()
{
Curses.timeout (-1);